Siege 'harsh reminder' for Tas: Lambie

Senator Jacqui Lambie says Tasmanians who are still "heartbroken" by the 1996 Port Arthur massacre share Sydney's pain over the deadly cafe siege.

While placing a bouquet at the Lindt cafe shrine in Martin Place, Senator Lambie said it brought back memories of the 1996 killing spree in Tasmania that left 35 people dead.

"We know what it's like," she told AAP.

"It affects the whole nation.

"The last few days in Tasmania, it's been a very harsh reminder and a reality check for us."

Relatives of Katrina Dawson, one of two hostages who died in the 16-hour siege, also visited the makeshift memorial on Thursday.

Australian Human Rights Commission president Gillian Triggs said the incident - in which siege gunman Man Haron Monis was also killed - raised questions over the granting of bail, access to firearms and mental health.